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Some new images from France

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#51 Steph_2.0

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Posted 18 February 2019 - 04:46 PM

The Siamese Twins, NGC 4567 and NGC 4568 (and some others…) in the constellation Virgo. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

ngc4568.jpg

ngc4568_as.jpg


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#52 Steph_2.0

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Posted 19 February 2019 - 01:05 AM

M87 and friends, mag 9.6, in the constellation Virgo. 15 min integration time, various sub exposure in the same stack (4s to 15s), darks, flats and Sharpcap enhancement on the fly.
Because of the moon, it was impossible for me to get the true color of the sky.

virgo.jpg

3206831.jpg


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#53 Steph_2.0

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Posted 19 February 2019 - 01:07 AM

NGC4725 & NGC4712, mag 10.1 & mag 12.5, in the constellation Coma Berénices. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

ngc4725.jpg


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#54 Steph_2.0

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Posted 19 February 2019 - 01:08 AM

M81, mag 6.9, ine the constellation Ursa Major. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

m81.jpg


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#55 Steph_2.0

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Posted 19 February 2019 - 01:09 AM

M100…and friends, mag 9.5, in the constellation Coma Berénices. 24 min integration time, various sub exposure in the same stack (4s to 15s), darks, flats and Sharpcap enhancement on the fly.

m100.jpg

m100_as.jpg


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#56 Steph_2.0

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Posted 19 February 2019 - 02:24 PM

M61, mag 10.1, in the constellation Virgo. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

m61.jpg

m61_as.jpg


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#57 Steph_2.0

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Posted 19 February 2019 - 02:28 PM

M64, The Black Eye Galaxy, mag 8.5, in the constellation Coma Berenices. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

m64.jpg

 


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#58 Steph_2.0

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Posted 19 February 2019 - 02:33 PM

M104, The Sombrero Galaxy, mag 9, in the constellation Virgo. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

M104.jpg


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#59 Steph_2.0

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Posted 19 February 2019 - 02:37 PM

NGC 891, mag 10.8, in the constellation Andromeda. 15 min integration time, various sub exposure in the same stack (4s to 15s), darks, flats and Sharpcap enhancement on the fly.

ngc891.jpg


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#60 Steph_2.0

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Posted 21 February 2019 - 06:13 PM

M1,The Crab Nebula, mag8.4, in the constellation of the Taurus, a nice and easy target. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

m1_c.jpg

m1_t.jpg


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#61 Rickster

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Posted 22 February 2019 - 12:57 PM

Very nice work!  This shows what is possible if one is willing to expend the effort and resources to build an exceptional EAA rig and learn how to use it.

 

I am curious.  What are your skies like "Somewhere in France?"  (darkness, seeing, transparency)



#62 Steph_2.0

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Posted 22 February 2019 - 07:04 PM

Very nice work!  This shows what is possible if one is willing to expend the effort and resources to build an exceptional EAA rig and learn how to use it.

 

I am curious.  What are your skies like "Somewhere in France?"  (darkness, seeing, transparency)

Thank you Rick.

 

I have the chance to live in a small village far from the big cities. In this village the public lighting is cut at 11pm.

I have a good sky on 180 °.So I have to wait for the right time, and the right position in the sky to stack the right target. I often use a UHC-S filter even on galaxies to get a black and uniform sky background, darks and flats also help a lot.

 

I use the "Smart Histogram" and the "Brain" function in Sharcap to help me to chose the right camera settings to get the best deep sky images.

I think I'm also very lucky, to have a combo that works well (telescope and camera). This is not a high-end material but I am happy with the result.

I will try to adapt a Peltier module on my camera to reduce the noise as much as possible. and I would like to reduce coma to improve the stars.


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#63 DSO_Viewer

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Posted 24 February 2019 - 01:46 PM

M1,The Crab Nebula, mag8.4, in the constellation of the Taurus, a nice and easy target. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

attachicon.gif m1_c.jpg

attachicon.gif m1_t.jpg

Thank you Steph for sharing your Sharpcap screen so we can get an idea of darks, flats and other adjustments on the fly. I will start using darks and flats with my C11 and ASI224MC camera since I have terrible vignetting and a none cooled camera. This truly is a new future way of doing EAA.

 

Steve



#64 Steph_2.0

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Posted 24 February 2019 - 07:35 PM

Thank you Steph for sharing your Sharpcap screen so we can get an idea of darks, flats and other adjustments on the fly. I will start using darks and flats with my C11 and ASI224MC camera since I have terrible vignetting and a none cooled camera. This truly is a new future way of doing EAA.

 

Steve

Hi Steve, Darks and Flats are very easy to use in Sharcap, and they really help to get à nice stack.

 

Make his Darks is simple, and you can use old ones...Flats are a little more tedious. The noise is a problem with a none cooled camera like yours and mine, so we have to use short exposure with a low gain level in the maximum dynamic range.

Make a "Sensor Analisys" in Sharpcap to get an idea of ​​the right settings.

 

Here mine:

sensor_c.jpg


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#65 Hypoxic

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Posted 27 February 2019 - 01:50 PM

M104, The Sombrero Galaxy, mag 9, in the constellation Virgo. 24 min integration time, various sub exposure in the same stack (4s to 30s), darks, flats and Sharpcap enhancement on the fly.

attachicon.gif M104.jpg

I really like this one.


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#66 Steph_2.0

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Posted 28 February 2019 - 03:44 PM

Hi everybody

 

My last night before the return of bad weather in France.

I made some tests with long exposures, no autoguiding.

 

Messier 94 (also known as NGC 4736) is a spiral galaxy in the constellation Canes Venatici, mag 8.2 (12X120s with Darks)

M94c.jpg

 

NGC 4490, also known as the Cocoon Galaxy, is a barred spiral galaxy in the constellation Canes Venatici, mag 9.8 (12X120s with Darks)

ngc 4490c.jpg

 

NGC 4244, also Caldwell 26, is an edge-on loose Spiral galaxy and Caldwell object in the constellation Canes Venatici, mag 10 (12X120s with Darks)

ngc4244c.jpg

 

Messier 95, also known as NGC 3351, is a barred spiral galaxy located about 33 million light-years away in the zodiac constellation Leo, mag 11.4 (12X120s with Darks

m95c.jpg


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#67 Steph_2.0

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Posted 28 February 2019 - 03:46 PM

Messier 108 (also known as NGC 3556) is a barred spiral galaxy in the constellation Ursa Major, mag10 (12X120s with Darks)

M108c.jpg

 

Messier 109 (also known as NGC 3992) is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar approximately 83.5 ± 24 million light-years[3] away in the constellation Ursa Major, mag 10.6 (12X120s with Darks)

m109c.jpg

 

NGC 2841 is an inclined unbarred spiral galaxy exhibiting a prominent inner ring structure in the constellation Ursa Major,mag 10.1 (12X120s with Darks)

ngc2841c.jpg

 


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#68 Steph_2.0

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Posted 28 February 2019 - 03:49 PM

The Sombrero Galaxy (also known as Messier Object 104, M104 or NGC 4594) is a lenticular galaxy[4] in the constellation Virgo, mag 9 (12X120s with Darks)

m104c.jpg

 

NGC 4618, a distorted barred dwarf galaxy in the constellation Canes Venatici, and NGC 4625 a distorted dwarf galaxy, mag 11.2 and 12.3 (12X120s with Darks)

ngc 4618c.jpg

 

NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices, mag 10.4 (576X2.5s with Darks)

ngc4565c.jpg


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#69 Steph_2.0

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Posted 02 March 2019 - 08:44 PM

Hi,

A single frame (120s) of M82, an exemple during a night with a good seeing.(I forgot to do the RGB color balance....grin.gif !)

m82_120s_c.jpg

 

And the final result , 12 x120s with Darks (20x), no Flats.

m82_c.jpg


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#70 Steph_2.0

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Posted 04 March 2019 - 03:40 PM

Hi, 

my session of March 2nd:

 

IC 434 in the constellation Orion, mag 7.3 (8 x 15s)

ic434.jpg

 

NGC 2207 and IC 2163 in the constellation Canis Major, mag 11 (18 x 15s)

ngc2207.jpg


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#71 Steph_2.0

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Posted 04 March 2019 - 03:42 PM

The Owl Nebula, M97, in the constellation Ursa Major, mag 9.9 (96 x 15s)

m97.jpg

 

ARP 188, The Tadpole Galaxy is a disrupted barred spiral galaxy, in the constellation Draco, mag 14.4 (96 x 15s)

arp188_astro.jpg


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#72 Steph_2.0

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Posted 04 March 2019 - 03:44 PM

M91 (mag 11) and NGC 4921 (mag 11.3) two spiral galaxy located in the Coma Berenices constellation (96 x 15s)

m91_astro.jpg

 

NGC 5905 and 5908 are a couple of galaxies in the constellation Dragon, mag 12 (96 x 15s)

ngc5908.jpg


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#73 Steph_2.0

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Posted 04 March 2019 - 03:46 PM

The Antennae Galaxies, also known as NGC 4038/NGC 4039, are a pair of interacting galaxies in the constellation Corvus. Mag 11 (96 x 15s)

ngc4038.jpg


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#74 Steph_2.0

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Posted 04 March 2019 - 03:48 PM

A part of the Coma Cluster (Abell 1656) is a large cluster of galaxies that contains over 1,000 identified galaxies. Along with the Leo Cluster (Abell 1367), it is one of the two major clusters comprising the Coma Supercluster.It is located in and takes its name from the constellation Coma Berenices. (96 x 15s)

coma.jpg


Edited by Steph_2.0, 04 March 2019 - 03:48 PM.

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#75 Steph_2.0

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Posted 10 March 2019 - 04:28 AM

Hi,

 

Arp 315 in southern Lynx,with NGC 2830, NGC 2831, NGC 2832 and many others...(96x15s with darks)

arp315.jpg


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